Hertel 30203120 Circuit Board Drill Bit 1/32 in

Product Description

The HERTEL 30203120 is a solid carbide circuit board drill bit designed for high-precision drilling in printed circuit boards and other tight-tolerance applications. With a 1/32 inch (0.0312 inch decimal) cutting diameter and a 130-degree drill point angle, it produces clean entry holes with minimal breakout. The fast spiral flute geometry and 35-degree helix angle promote efficient chip evacuation in shallow-depth holes. The bright polished finish reduces friction and heat buildup during operation. This bit is intended for use by machinists, electronics technicians, and skilled tradespeople who require repeatable hole geometry in small-diameter work.

This drill bit is suited for precision drilling in alloy steel, carbon steel, cast iron, high temperature alloy, stainless steel, and titanium. It fits applications where a 1/8 inch shank diameter is required for collet or chuck compatibility. The 1/4 inch flute length and 1-1/2 inch overall length make it appropriate for shallow-depth circuit board and fine metalworking operations where bit rigidity and runout control are critical.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• 130-degree drill point angle optimized for circuit board and thin-material drilling
• Fast spiral flute design with 35-degree helix angle for efficient chip removal
• Tapered web configuration adds strength at the cutting tip
• Bright polished finish minimizes friction and heat generation
• Right-hand cutting direction; compatible with standard drill chucks and collets accepting 1/8 inch shanks

Compatibility

Designed as a precision replacement or stock drill bit for any drill press, CNC drilling machine, or hand-held rotary tool equipped with a collet or chuck accepting a 1/8 inch shank diameter.

Installation Notes

Installation and use should be performed by a qualified machinist or technician familiar with small-diameter carbide tooling. Always secure the workpiece firmly before drilling to prevent bit deflection or breakage. Carbide bits are brittle and should not be used with excessive side pressure or in applications that produce lateral loading. Inspect the bit for chips or cracks before each use and replace if any damage is detected.